As admin I want to see all suspicious activity on the site

[php-coder]

Currently we are logging 2 types of suspicious activity to database. But we can't view them from the site. So, I suggest to add very basic page to allow admin to see it.

Short plan:

• add special page (what URL we will use?), restrict access to it only to admin (add new authority), don't forget to add togglz integration
• add link to this page to the index page (again, it should be visible only by admin)

Notes:

• Keep It Simple, it's a first version (so, no pagination support for a while)
• no unit/integration tests required (after merging this issue, you should create appropriate tickets for adding these tests)

[php-coder]

After fixing #133 we also should show column with HTTP method.

[php-coder]

@flexjoy I hope that you wouldn't mind if I re-assign this issue to @cssru.